zookman
Well-Known Member
is one bullet better to break in a barrel
I have used tubbs 2000 on a my 270 win, ar-15 and resorted my 220 swift. These are great bullets to break your barrel in with. Much less round through it and gives a great polish to the barrel.
On load development with break-in... I've tried that with varying results and my approach now is to do them separately, one reason being, that it usually takes a couple to several shots to settle in a barrel after a good cleaning. That being said, one can hardly second guess Jeff's results.
-Mark
What's paper patch?
Jeff, I have been using Bore Tech Eliminator, but I did get a bottle of the CU+2. Your results sound great, so I'll give it a try with my next barrel. What are you doing about powder fouling? Also, I have yet to break-in a custom barrel. That will be next.Sorry to drift off topic a little here but this could be relevan. Mark what are you using for a cleaner for break in?
I use to see the 2~3 shots to settle one in after cleaning. But since I have been using BoreTech CU+2 I don't see this. I will not say this is a proven deal, but I have tested this a few times. My first shot after cleaning has been 1/2 moa to point of aim even when tested at 1000 and 1400 yards. I decided to try this after reading on the bottle you can leave CU+2 in the bore as a storage protectant. Then simply patch dry and shoot. It has worked for me even after setting a week in the safe. Patched dry and first shot was in the 7" circle on my target at 1400... Well 1395 to be exact.
Jeff
Black powder cartridges. Not something one would use in a modern rifle unless of course it is a rifle designed to shoot a particular caliber using black powder/paper patch with lead bullets.
Tank
IMO, breaking in barrels is a waste of good components and time. My last three builds I have just taken out and shot,working up loads without any special cleaning-break in. Guess what? they are just as accurate as any of my other rifles that I meticulously"broke in". My borescope shows me they're just as smooth and stay just as copper free as the others....my barrel break in days are over.